\chapter{Proposed system}
	\section{Overview}
		\blindtext
	\section{Functional requirements}
		\begin{enumerate}
		\item Authorization
			\begin{description}
				\item[a.] The user must be able to log on to Da CalenderSystem\texttrademark with a user name and password.
			\end{description}
		\item Calendar
			\begin{description}
				\item[a.] The user must be able to view appointments of the calendar they belong to.
				\item[b.] The user must be able to create new appointments and edit or delete existing appointments.
				\item[c.] The user must be able to share the calender with other selected users.
			\end{description}
		\end{enumerate}
	\clearpage
	\section{Nonfunctional requirements}
		\input{tex/Chapter3_sub/nonfunctional_requirements.tex}
	\section{System models}
		\input{tex/Chapter3_sub/system_models.tex}